Reservoir-pen.



13.- DE LA RUE. RSERVOIR PEN. APPLICATION PILED JUNE 12, 1908.

926,61 1 Patented June 29, 1909. 1

, and useful Improvements in Rese1W carrier or th sequently decreasmg UNITED STATES PATENT OFFICE.

Specificafion of Letters Patent. Patented June 29, Application flled June 12, 1908. Seral No. 438,110.

T0 all whom it may concem: dis screwed home. Be it known that I, EVELYN DE LA RUE, manufacturer, a subject of the King of Great Britain, residing et 110 Bunhi 'Row; in the city of London, England, have irwented new rPens, of which the following is a specifictin- The object of this invention is to prvide an imp roved means of filling a fountain or reservoxr pan.

I forin a fountain pen with a. tube communicating with the outside of the pen carrier and reacbing from the nib and back to rieur the top end of the bar-tel and I also provide means for varying the 09 aeity of the barre By dipping the nib end eneath the surface of the ink in an ink ot and increasin the onpacity of the barre ink is caused to ow into the barrel through the ink ducts in the pen rough the tube or both. On su the capncity, air is ejected from the top of the barre! down the tube and on next increasing the capacity more ink is drawn-in and so on.

The drwing shows one form of pen mode in acdordahce with this invention.

a is the tube which communiontes with the front of the pen carrier b in any convenient position and passes up through the barre! c nearly to the top thereof.

d is a screw en earrying a piston 42 by means of which t e dapacity 0 the barrel may be Varied. is screwed home.

f are the usuul ink ducts by which ink is 1 EVELYN DE LA RE. supplied to the pen when in use. The piston Witness:

It is true that each time the capacity is diminished a certain qunntity of .ink is ejeoted from the pen through the ducts f but as some air 19 also oxpefled through the tube a while only ink cnn enter, the barrel gradually gets filled.

W hat I daim is: 1. In n reservoir pen the combinotion 01 :t barrel, -& pen-enrrier provided with ink ducts through which ink is supplied from the bairel to the pen and through which ink mn.y bo dmwn into the barrel, u tube oommunicating with the Outside through the encurrier and reuching nenrly to the top of t le bu1101, zL cap ada ted to screw on the top of the barre 5L iston carried by the cap and capable of movement in the top en of the burrel and adapted to butt against and close tho tube when the cap 19 sorewed home.

2. In 11 rcservo1r pan, the oombinntion of a barrel, a pen corner provided with two ducts t both of wnich extend from the outer or h werend of the en carrier and one of whioh commuiontes wlth the lowor and of the barrel, a tube communicnting with the inner or upper and o the other duct and extending artinl\y through the bzu1oi and terminnting near the upper end thereof, u cap udnptec to sorew on the top of the barrol, a piston cn;r ried by tho*ca and capable of movemeut m the uppc1 cm of the b:urel and ada.pted to butt nginst nd close the tube when the cnp is prefembly so arranged as to butt ngninst H D. J AMESON,

F. L. AND.

and close the exit of the tube (L when the cap 

